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One trip described is about sea voyage where this man was so sea-sick he had to exit the vessel before the trip ended,

For the next four days he lived a simple and blameless life on thin captain’s biscuits (I mean that the biscuits were thin, not the captain) and soda-water; but, towards Saturday, he got uppish, and went in for weak tea and dry toast, and on Monday he was gorging himself on chicken broth. He left the ship on Tuesday, and as it steamed away from the landing-stage he gazed after it regretfully.

“There she goes,” he said, “there she goes, with two pounds’ worth of food on board that belongs to me, and that I haven’t had.”

Another voyage was describes across the channel.

"Then he told us anecdotes of how he had gone across the Channel when it was so rough that the passengers had to be tied into their berths, and he and the captain were the only two living souls on board who were not ill. Sometimes it was he and the second mate who were not ill; but it was generally he and one other man. If not he and another man, then it was he by himself."